Re: Albion Slide Masks are Back

[P3D Greg Erker <erker@xxxxxxxxxxxxxx>]

Dennis S wrote:

>Changing any of the dimensions entails designing a completely new die...
>the CAD design time, toolmakers time, EDM time, etc. wouldn't be effected
>by such a time.  Most people don't understand this.  Mucho $$$

  Designing a reduced height 5 perf EMDE or Albion mount
means a new die anyways. So, eliminating the channels and
just making a flat mount or mask (better term) should
mean a cheaper die. That was the point I was trying to make.

>Ever since the introduction of projected 3D slides, aluminum has stood
>the test of time.  It really is the best material to use.  Paper and
>plastic both have their problems.  I don't mean to start an arguement
>near, search the archives, or better still ask those who do a lot of
>projection.

  It's the best common material to use (nit pick).
Aluminum is quite reflective in the visible light range
but poor in the thermal IR, so it warms up more than
other shiny materials would (say stainless steel or
brass). Talk about expensive tools to make a die to
punch stainless :)

[The above if from my memory of the discussion that
occurred when George was putting thermal probes in
projectors. Reality may vary :) ]


(snipped comment about plastic mask material)
>Tooling is expensive, however new dies would probably last for a long,
>long time.  As one toolmaker told me, "Dennis I can make anything if you
>are willing to pay for it."

  :)

Greg E.



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